Bed bottom



F. G. GALE.

BED BOTTOM.

APPLICATION FILED JAN. 7. I916- RENEWED JAN. 20, 1922.

Patented Oct. 24, 1922..

InvenTm: mncis G. Guie li atented Uet. 2d, rear.

r as

earner article;

BED BOTTOM.

Application filed January 7, 1916, Serial No. 70,882. Renewed January20, 1922. Serial No. 530,724.

To all w/tom it may concern: Be it known that I, l nnnois G. GALE, a

subject of the Kin of Great Britain, residing at WVaterville, rovince ofQuebec Can-- ada, have invented an Improvement n Bed Bottoms, of whichthe following descrlption, in connection with the accompanying drawing,is a specification, like characters on the drawing representinglikesparts.

This invention relates to. bed bottomsof that type comprising aplurality of vertically disposed spiral springs which are c011- nectedtogether at top and bottom by tie-- wires, and the object of theinvention is to. provide a novelbed bottom of this nature which soconstructed that a reduced number of springs canbeemployed withoutsacrificing anythingin the way of strength or an as will be more fullyhereinafter set forth.

In order to give an understanding of my invention l have lllustrated 1nthe drawings a selected embodiment thereof which will i now bedescribed, after which the-novel features will be pointed out in theappended claims. A i Fig. 1 1s :a plan new of a bed bottom embodying myinvention; 1

Fig. 2 is a side view thereof; b

Fig. 3 is a perspective view of aportion of the top of a bedbottom; a

. Fig. 4b is a sectional view taken through one side of the end. turn ofa spring showing the manner in which the tie-wires are securedthereto. pi

The herein-described bed bottom is of that type which-comprises aplurality. of

vertical spiral or coil springs 1 that areconnected at top and bottom bytie'wires which operate to hold the springs in their proper relativeposition and also assist in forming the top and bottomsurfaces of thebed bottom.

1 In my novel bedbottom the tie-wires are arranged diagonally and thosewhich extend in one direction are situatedtangentially to the end turnsof the spiral springs, while those which extend in the other directionare situated diametrically of the end turns of the spiral springs.Further, the tiewires are welded together where they cross 1 eachdiagonal row.

each other andare also welded to the end turns of th coil springs 1where they oontact with said springs, thus making a practically integraland indestructible structure. The tie-wires which are arrangedtangentially to the end turns of the coil springs are shown at landthose which are arranged diametrically thereof are shown at The coilsprings 1 are arranged in rows exa tending both longitudinally andtransversely of the bed bottom, which arrangement resultsin diagonallyarranged rows extending in each diagonal direction. The tie-wires 2 and3 extend parallel to the diagonal rows. The tie wires3 extend centrallyof each diagonal row, that is, said tie-wires pass over the centers ofthe spiral springs 1 in The tie-wires 2 are arranged tangentially to theend turns st of each coil spring, and I propose to make the end turns Lof such a size relative to the spacing of the coil springs that eachtie-wire 2 will have a tangential arrangement with the end turns l-oftwo rows of coil springs 1. In other words, the end turns 4 of each coilspring are of such a size that when a tie-wire 2 is placed in tangentialrelation to the end turns of one diagonal row, it will also have atangential relation to theend turns-of the next adjacent diagonal row.Each tie-wire 2, therefore, will tangentially engage the end turns 4 oftwo diagonal rows of springs 1, as clearly seen in F 1 and 8.

The tie-wires 2 and 3 are connected to the end turns 4 of the crosswires in some 1 suitable way, and to provide a rigid and strongstructural will preferably electrically weld the tie-wires to the endturns 4 of the springs lat the points of engagement. 1 will alsopreferably electrically weld the tie wires 1 2 and 3 together where theycross each other so that each end turn 41 of each spring 1 has twotie-wires electrically welded thereto on opposite sides thereof as shownbed bottom on both sides and is electrically welded to the ends of thetie-wires 2 and 3 and to the end turns 4 oi the coil springs, as shownat 6.

My improved. bed bottom is practically an integral structure because o1the way in which the tie wires and peripheral wires are welded or joinedto the end wires of the springs l. A bed made in this way always has theadvantage that it is noiseless because there are no parts loosely inengagement with each other that can rub and thus pro duie a squeakingnoise when weight is applied to the bed. All of the tie wires andsprings are welded together at points where they touch each other.Furthermore, the manner in which the tie wires are connected to thesprings ensures that the strain on the Wires will be evenly distributed,thus enabling me to use a lighter and smaller wire than would otherwisebe possible. This makes the bed bottom lighter in weight withoutsacrificing anything in the way of strength. The bed bottom is alsoreversible in that both the top side and the bot-tom side are alike.This is an advantage because the bed bottom can be used either side up.

The arrangement of tie-wires 2 and 3 herein shown has the advantage thatonly one tie-wire in each direction is required i'or each row ofsprings. The tie-wires 2 are disposed so as to have a tangentialrelation to the'end turns of the springs, but because of the fact thateach tie-wire 2 is connected to two adjacent rows of springs there isonly one tie-wire 2 for each row of springs, similarly there is only onetie-wire 3 for each row of springs. The number of tie-wires used is thusreduced to a minimum.

This arrangement has a further advantage that notwithstanding a minimumnumber of tie-wires are used, a relatively fine mesh is producedat eachside of the bed bottom. This is due to the fact that the tie-wires 3cross centrally the space between two adjacent springs in the row ofsprings extend-- ing parallel to the tie-Wires 2 and the spaces betweenthe springs are therefore divided up by the tie-wires so as to make agood support for the mattress A further advantage of this constructionis that there are only two places at the end of each spring where thewires are fastened thereto; Since the tie-Wires 3 engage the end turns4. of the springs at the points where the tie-wires 2 have engagementtherewith. it is only necessary to make two welds at each end of eachspring in order to connect all the tie-wires to the springs.

claim:

1. A. bed bottom comprising a plurality of vertical coiled springsarranged in rows extending diagonally in both directions, a plurality Oidiagonal tie-wires for connect ing the end turns oil. the coils, each oisaidv tie-wires being situated between two adja cent rows that extend inone direction. said rows being so SpfiCCtl. that the end turns of allthe springsin the rows on each sidcot any tie-wiles arc tangcntialthereto, and other tie-wires crossing the first named tic-wires at thepoints where they are tangential to the end turns oi. the springs andextending diametrically of said end turns. the crossing tie-wires beingwelded to the end turns of the springs and to each other at the pointswhere they cross the end turn of each spring .iaving two of thefirst-named tic-wires welded thereto at two dinmetrically-oppositcpoints and one oi the last-named tic wires welded thereto at both saidpoints.

2. A bed bottom comprising a plurality of: vertical coiled springsarranged in rows extending diagonally in both dircrtions. a plurality ofdiagonal tie-wires on both the top side and the bottom side of the bedbottom, each of said tiewires being situated between two adjacent rowsthat extend in one direction, said rows being so spaced that the endturns of all the springs in the rows on each side of any tie-wire aretangential thereto. and other tie-wires on both the top side and thebottom side of the bed bottom crossing the first named tie-wires at thepoints where they are tangential to the end turns of the springs andextending diametri ally of said end turns. the crossing ticwires beingwelded to the end turns of the springs and to ca h other at the pointswhere they cross, and a binding wire extending around the periphery ofthe bed bottom at both the top and the bottom and being welded to theend turns of the springs and to the ends of the tie wires In testimonywhereof I have signed my name to this specification.

FRANCIS Gr. GALE.

